Birthday greeting
Enter a chat room in PictoChat on the date that you
entered as your birthday in the system settings. The message "Happy
Birthday! Today is <your name's> birthday!"
will appear. The starting sound of the DS will also change on your birthday.
In-game reset
Hold [L] + [R] + [Start] + [Select]
during game play in a Nintendo DS game to return to its title
screen.
Game Boy Advance in-game reset
Hold [A] + [B] + [Start] + [Select]
during game play in a Game Boy Advance game to return to its title
screen.
Quick Game Boy Advance start
With both a Game Boy Advance and Nintendo DS game inserted,
hold [B] when turning on the Nintendo DS. It will advance
directly to the Game Boy Advance games without the usual warning
screens.
Abort Automatic Play mode
After turning on Automatic Play mode, hold [Start]
when turning on the Nintendo DS to return to the main menu instead
of starting the game.